3.22.1 html 706 521 1 false 115 0 false 10 false false R1.htm 0001001 - Document - Cover Sheet http://www.triumphbancorp.com/role/Cover Cover Cover 1 false false R2.htm 1001002 - Statement - CONSOLIDATED BALANCE SHEETS Sheet http://www.triumphbancorp.com/role/CONSOLIDATEDBALANCESHEETS CONSOLIDATED BALANCE SHEETS Statements 2 false false R3.htm 1002003 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) Sheet http://www.triumphbancorp.com/role/CONSOLIDATEDBALANCESHEETSParenthetical CONSOLIDATED BALANCE SHEETS (Parenthetical) Statements 3 false false R4.htm 1003004 - Statement - CONSOLIDATED STATEMENTS OF INCOME Sheet http://www.triumphbancorp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME CONSOLIDATED STATEMENTS OF INCOME Statements 4 false false R5.htm 1004005 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Sheet http://www.triumphbancorp.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Statements 5 false false R6.htm 1005006 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY Sheet http://www.triumphbancorp.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSTOCKHOLDERSEQUITY CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY Statements 6 false false R7.htm 1006007 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS Sheet http://www.triumphbancorp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS CONSOLIDATED STATEMENTS OF CASH FLOWS Statements 7 false false R8.htm 2101101 - Disclosure - Summary of Significant Accounting Policies Sheet http://www.triumphbancorp.com/role/SummaryofSignificantAccountingPolicies Summary of Significant Accounting Policies Notes 8 false false R9.htm 2104102 - Disclosure - Acquisitions and Divestitures Sheet http://www.triumphbancorp.com/role/AcquisitionsandDivestitures Acquisitions and Divestitures Notes 9 false false R10.htm 2112103 - Disclosure - Securities Sheet http://www.triumphbancorp.com/role/Securities Securities Notes 10 false false R11.htm 2120104 - Disclosure - Loans and Allowance for Credit Losses Sheet http://www.triumphbancorp.com/role/LoansandAllowanceforCreditLosses Loans and Allowance for Credit Losses Notes 11 false false R12.htm 2136105 - Disclosure - Goodwill and Intangible Assets Sheet http://www.triumphbancorp.com/role/GoodwillandIntangibleAssets Goodwill and Intangible Assets Notes 12 false false R13.htm 2140106 - Disclosure - Derivative Financial Instruments Sheet http://www.triumphbancorp.com/role/DerivativeFinancialInstruments Derivative Financial Instruments Notes 13 false false R14.htm 2146107 - Disclosure - Variable Interest Entities Sheet http://www.triumphbancorp.com/role/VariableInterestEntities Variable Interest Entities Notes 14 false false R15.htm 2150108 - Disclosure - Legal Contingencies Sheet http://www.triumphbancorp.com/role/LegalContingencies Legal Contingencies Notes 15 false false R16.htm 2151109 - Disclosure - Off-Balance Sheet Loan Commitments Sheet http://www.triumphbancorp.com/role/OffBalanceSheetLoanCommitments Off-Balance Sheet Loan Commitments Notes 16 false false R17.htm 2155110 - Disclosure - Fair Value Disclosures Sheet http://www.triumphbancorp.com/role/FairValueDisclosures Fair Value Disclosures Notes 17 false false R18.htm 2162111 - Disclosure - Regulatory Matters Sheet http://www.triumphbancorp.com/role/RegulatoryMatters Regulatory Matters Notes 18 false false R19.htm 2165112 - Disclosure - Stockholders' Equity Sheet http://www.triumphbancorp.com/role/StockholdersEquity Stockholders' Equity Notes 19 false false R20.htm 2169113 - Disclosure - Stock Based Compensation Sheet http://www.triumphbancorp.com/role/StockBasedCompensation Stock Based Compensation Notes 20 false false R21.htm 2178114 - Disclosure - Earnings Per Share Sheet http://www.triumphbancorp.com/role/EarningsPerShare Earnings Per Share Notes 21 false false R22.htm 2182115 - Disclosure - Revenue From Contracts With Customers Sheet http://www.triumphbancorp.com/role/RevenueFromContractsWithCustomers Revenue From Contracts With Customers Notes 22 false false R23.htm 2184116 - Disclosure - Business Segment Information Sheet http://www.triumphbancorp.com/role/BusinessSegmentInformation Business Segment Information Notes 23 false false R24.htm 2202201 - Disclosure - Summary of Significant Accounting Policies (Policies) Sheet http://www.triumphbancorp.com/role/SummaryofSignificantAccountingPoliciesPolicies Summary of Significant Accounting Policies (Policies) Policies http://www.triumphbancorp.com/role/SummaryofSignificantAccountingPolicies 24 false false R25.htm 2305301 - Disclosure - Acquisitions and Divestitures (Tables) Sheet http://www.triumphbancorp.com/role/AcquisitionsandDivestituresTables Acquisitions and Divestitures (Tables) Tables http://www.triumphbancorp.com/role/AcquisitionsandDivestitures 25 false false R26.htm 2313302 - Disclosure - Securities (Tables) Sheet http://www.triumphbancorp.com/role/SecuritiesTables Securities (Tables) Tables http://www.triumphbancorp.com/role/Securities 26 false false R27.htm 2321303 - Disclosure - Loans and Allowance for Credit Losses (Tables) Sheet http://www.triumphbancorp.com/role/LoansandAllowanceforCreditLossesTables Loans and Allowance for Credit Losses (Tables) Tables http://www.triumphbancorp.com/role/LoansandAllowanceforCreditLosses 27 false false R28.htm 2337304 - Disclosure - Goodwill and Intangible Assets (Tables) Sheet http://www.triumphbancorp.com/role/GoodwillandIntangibleAssetsTables Goodwill and Intangible Assets (Tables) Tables http://www.triumphbancorp.com/role/GoodwillandIntangibleAssets 28 false false R29.htm 2341305 - Disclosure - Derivative Financial Instruments (Tables) Sheet http://www.triumphbancorp.com/role/DerivativeFinancialInstrumentsTables Derivative Financial Instruments (Tables) Tables http://www.triumphbancorp.com/role/DerivativeFinancialInstruments 29 false false R30.htm 2347306 - Disclosure - Variable Interest Entities (Tables) Sheet http://www.triumphbancorp.com/role/VariableInterestEntitiesTables Variable Interest Entities (Tables) Tables http://www.triumphbancorp.com/role/VariableInterestEntities 30 false false R31.htm 2352307 - Disclosure - Off-Balance Sheet Loan Commitments (Tables) Sheet http://www.triumphbancorp.com/role/OffBalanceSheetLoanCommitmentsTables Off-Balance Sheet Loan Commitments (Tables) Tables http://www.triumphbancorp.com/role/OffBalanceSheetLoanCommitments 31 false false R32.htm 2356308 - Disclosure - Fair Value Disclosures (Tables) Sheet http://www.triumphbancorp.com/role/FairValueDisclosuresTables Fair Value Disclosures (Tables) Tables http://www.triumphbancorp.com/role/FairValueDisclosures 32 false false R33.htm 2363309 - Disclosure - Regulatory Matters (Tables) Sheet http://www.triumphbancorp.com/role/RegulatoryMattersTables Regulatory Matters (Tables) Tables http://www.triumphbancorp.com/role/RegulatoryMatters 33 false false R34.htm 2366310 - Disclosure - Stockholders' Equity (Tables) Sheet http://www.triumphbancorp.com/role/StockholdersEquityTables Stockholders' Equity (Tables) Tables http://www.triumphbancorp.com/role/StockholdersEquity 34 false false R35.htm 2370311 - Disclosure - Stock Based Compensation (Tables) Sheet http://www.triumphbancorp.com/role/StockBasedCompensationTables Stock Based Compensation (Tables) Tables http://www.triumphbancorp.com/role/StockBasedCompensation 35 false false R36.htm 2379312 - Disclosure - Earnings Per Share (Tables) Sheet http://www.triumphbancorp.com/role/EarningsPerShareTables Earnings Per Share (Tables) Tables http://www.triumphbancorp.com/role/EarningsPerShare 36 false false R37.htm 2385313 - Disclosure - Business Segment Information (Tables) Sheet http://www.triumphbancorp.com/role/BusinessSegmentInformationTables Business Segment Information (Tables) Tables http://www.triumphbancorp.com/role/BusinessSegmentInformation 37 false false R38.htm 2403401 - Disclosure - Summary of Significant Accounting Policies - Narrative (Details) Sheet http://www.triumphbancorp.com/role/SummaryofSignificantAccountingPoliciesNarrativeDetails Summary of Significant Accounting Policies - Narrative (Details) Details 38 false false R39.htm 2406402 - Disclosure - Acquisitions and Divestitures - Summary of Assets and Liabilities in Disposal Group, Factored Receivable (Details) Sheet http://www.triumphbancorp.com/role/AcquisitionsandDivestituresSummaryofAssetsandLiabilitiesinDisposalGroupFactoredReceivableDetails Acquisitions and Divestitures - Summary of Assets and Liabilities in Disposal Group, Factored Receivable (Details) Details 39 false false R40.htm 2407403 - Disclosure - Acquisitions and Divestitures - Additional Information (Details) Sheet http://www.triumphbancorp.com/role/AcquisitionsandDivestituresAdditionalInformationDetails Acquisitions and Divestitures - Additional Information (Details) Details 40 false false R41.htm 2408404 - Disclosure - Acquisitions and Divestitures - Summary of Assets and Liabilities in Disposal Group, Branch (Details) Sheet http://www.triumphbancorp.com/role/AcquisitionsandDivestituresSummaryofAssetsandLiabilitiesinDisposalGroupBranchDetails Acquisitions and Divestitures - Summary of Assets and Liabilities in Disposal Group, Branch (Details) Details 41 false false R42.htm 2409405 - Disclosure - Acquisitions and Divestitures - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed, HubTran, Inc. (Details) Sheet http://www.triumphbancorp.com/role/AcquisitionsandDivestituresScheduleofRecognizedIdentifiedAssetsAcquiredandLiabilitiesAssumedHubTranIncDetails Acquisitions and Divestitures - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed, HubTran, Inc. (Details) Details 42 false false R43.htm 2410406 - Disclosure - Acquisitions and Divestitures - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed, Transport Financial Solutions (Details) Sheet http://www.triumphbancorp.com/role/AcquisitionsandDivestituresScheduleofRecognizedIdentifiedAssetsAcquiredandLiabilitiesAssumedTransportFinancialSolutionsDetails Acquisitions and Divestitures - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed, Transport Financial Solutions (Details) Details 43 false false R44.htm 2411407 - Disclosure - Acquisitions and Divestitures - Factored Receivables Purchased with Credit Deterioration (Details) Sheet http://www.triumphbancorp.com/role/AcquisitionsandDivestituresFactoredReceivablesPurchasedwithCreditDeteriorationDetails Acquisitions and Divestitures - Factored Receivables Purchased with Credit Deterioration (Details) Details 44 false false R45.htm 2414408 - Disclosure - Securities - Additional Information (Details) Sheet http://www.triumphbancorp.com/role/SecuritiesAdditionalInformationDetails Securities - Additional Information (Details) Details 45 false false R46.htm 2415409 - Disclosure - Securities - Schedule of Gross Realized and Unrealized Losses Recognized on Equity Securities (Details) Sheet http://www.triumphbancorp.com/role/SecuritiesScheduleofGrossRealizedandUnrealizedLossesRecognizedonEquitySecuritiesDetails Securities - Schedule of Gross Realized and Unrealized Losses Recognized on Equity Securities (Details) Details 46 false false R47.htm 2416410 - Disclosure - Securities - Schedule of Amortized Cost of Securities and Their Estimated Fair Values (Details) Sheet http://www.triumphbancorp.com/role/SecuritiesScheduleofAmortizedCostofSecuritiesandTheirEstimatedFairValuesDetails Securities - Schedule of Amortized Cost of Securities and Their Estimated Fair Values (Details) Details 47 false false R48.htm 2417411 - Disclosure - Securities - Schedule of Amortized Cost and Estimated Fair Value of Debt Securities by Contractual Maturity (Details) Sheet http://www.triumphbancorp.com/role/SecuritiesScheduleofAmortizedCostandEstimatedFairValueofDebtSecuritiesbyContractualMaturityDetails Securities - Schedule of Amortized Cost and Estimated Fair Value of Debt Securities by Contractual Maturity (Details) Details 48 false false R49.htm 2418412 - Disclosure - Securities - Schedule of Available for Sale Debt Securities in an Unrealized Loss Position (Details) Sheet http://www.triumphbancorp.com/role/SecuritiesScheduleofAvailableforSaleDebtSecuritiesinanUnrealizedLossPositionDetails Securities - Schedule of Available for Sale Debt Securities in an Unrealized Loss Position (Details) Details 49 false false R50.htm 2419413 - Disclosure - Securities - Summary of Activity in Allowance for Credit Losses for Held To Maturity Debt Securities (Details) Sheet http://www.triumphbancorp.com/role/SecuritiesSummaryofActivityinAllowanceforCreditLossesforHeldToMaturityDebtSecuritiesDetails Securities - Summary of Activity in Allowance for Credit Losses for Held To Maturity Debt Securities (Details) Details 50 false false R51.htm 2422414 - Disclosure - Loans and Allowance for Credit Losses - Schedule of Loans Held for Sale (Details) Sheet http://www.triumphbancorp.com/role/LoansandAllowanceforCreditLossesScheduleofLoansHeldforSaleDetails Loans and Allowance for Credit Losses - Schedule of Loans Held for Sale (Details) Details 51 false false R52.htm 2423415 - Disclosure - Loans and Allowance for Credit Losses - Schedule of Amortized Cost and Unpaid Principal for Impaired Loans (Details) Sheet http://www.triumphbancorp.com/role/LoansandAllowanceforCreditLossesScheduleofAmortizedCostandUnpaidPrincipalforImpairedLoansDetails Loans and Allowance for Credit Losses - Schedule of Amortized Cost and Unpaid Principal for Impaired Loans (Details) Details 52 false false R53.htm 2424416 - Disclosure - Loans and Allowance for Credit Losses - Additional Information (Details) Sheet http://www.triumphbancorp.com/role/LoansandAllowanceforCreditLossesAdditionalInformationDetails Loans and Allowance for Credit Losses - Additional Information (Details) Details 53 false false R54.htm 2425417 - Disclosure - Loans and Allowance for Credit Losses - Schedule of Loans Transferred from Held For Investment to Loans Held For Sale (Details) Sheet http://www.triumphbancorp.com/role/LoansandAllowanceforCreditLossesScheduleofLoansTransferredfromHeldForInvestmenttoLoansHeldForSaleDetails Loans and Allowance for Credit Losses - Schedule of Loans Transferred from Held For Investment to Loans Held For Sale (Details) Details 54 false false R55.htm 2426418 - Disclosure - Loans and Allowance for Credit Losses - Summary of Allowance for Loan and Lease Losses (Details) Sheet http://www.triumphbancorp.com/role/LoansandAllowanceforCreditLossesSummaryofAllowanceforLoanandLeaseLossesDetails Loans and Allowance for Credit Losses - Summary of Allowance for Loan and Lease Losses (Details) Details 55 false false R56.htm 2427419 - Disclosure - Loans and Allowance for Credit Losses - Summary of Amortized Cost Basis of Collateral Dependent Loans (Details) Sheet http://www.triumphbancorp.com/role/LoansandAllowanceforCreditLossesSummaryofAmortizedCostBasisofCollateralDependentLoansDetails Loans and Allowance for Credit Losses - Summary of Amortized Cost Basis of Collateral Dependent Loans (Details) Details 56 false false R57.htm 2428420 - Disclosure - Loans and Allowance for Credit Losses - Summary of Contractually Past Due and Nonaccrual Loans (Details) Sheet http://www.triumphbancorp.com/role/LoansandAllowanceforCreditLossesSummaryofContractuallyPastDueandNonaccrualLoansDetails Loans and Allowance for Credit Losses - Summary of Contractually Past Due and Nonaccrual Loans (Details) Details 57 false false R58.htm 2429421 - Disclosure - Loans and Allowance for Credit Losses - Summary of Amortized Cost Basis of Loans on Nonaccrual Status (Details) Sheet http://www.triumphbancorp.com/role/LoansandAllowanceforCreditLossesSummaryofAmortizedCostBasisofLoansonNonaccrualStatusDetails Loans and Allowance for Credit Losses - Summary of Amortized Cost Basis of Loans on Nonaccrual Status (Details) Details 58 false false R59.htm 2430422 - Disclosure - Loans and Allowance for Credit Losses - Summary of Accrued Interest on Non Accrual Loans Reversed Through Interest Income (Details) Sheet http://www.triumphbancorp.com/role/LoansandAllowanceforCreditLossesSummaryofAccruedInterestonNonAccrualLoansReversedThroughInterestIncomeDetails Loans and Allowance for Credit Losses - Summary of Accrued Interest on Non Accrual Loans Reversed Through Interest Income (Details) Details 59 false false R60.htm 2431423 - Disclosure - Loans and Allowance for Credit Losses - Schedule of Nonperforming Loans (Details) Sheet http://www.triumphbancorp.com/role/LoansandAllowanceforCreditLossesScheduleofNonperformingLoansDetails Loans and Allowance for Credit Losses - Schedule of Nonperforming Loans (Details) Details 60 false false R61.htm 2432424 - Disclosure - Loans and Allowance for Credit Losses - Summary of Analysis Performed Risk category Loans (Details) Sheet http://www.triumphbancorp.com/role/LoansandAllowanceforCreditLossesSummaryofAnalysisPerformedRiskcategoryLoansDetails Loans and Allowance for Credit Losses - Summary of Analysis Performed Risk category Loans (Details) Details 61 false false R62.htm 2433425 - Disclosure - Loans and Allowance for Credit Losses - Schedule of Loans Modified as Troubled Debt Restructurings (Details) Sheet http://www.triumphbancorp.com/role/LoansandAllowanceforCreditLossesScheduleofLoansModifiedasTroubledDebtRestructuringsDetails Loans and Allowance for Credit Losses - Schedule of Loans Modified as Troubled Debt Restructurings (Details) Details 62 false false R63.htm 2434426 - Disclosure - Loans and Allowance for Credit Losses - Loan Modifications (Details) Sheet http://www.triumphbancorp.com/role/LoansandAllowanceforCreditLossesLoanModificationsDetails Loans and Allowance for Credit Losses - Loan Modifications (Details) Details 63 false false R64.htm 2435427 - Disclosure - Loans and Allowance for Credit Losses - Summary of Amortized Cost of Loans Currently in Deferral (Details) Sheet http://www.triumphbancorp.com/role/LoansandAllowanceforCreditLossesSummaryofAmortizedCostofLoansCurrentlyinDeferralDetails Loans and Allowance for Credit Losses - Summary of Amortized Cost of Loans Currently in Deferral (Details) Details 64 false false R65.htm 2438428 - Disclosure - Goodwill and Intangible Assets - Schedule of Intangible Assets and Goodwill (Details) Sheet http://www.triumphbancorp.com/role/GoodwillandIntangibleAssetsScheduleofIntangibleAssetsandGoodwillDetails Goodwill and Intangible Assets - Schedule of Intangible Assets and Goodwill (Details) Details 65 false false R66.htm 2439429 - Disclosure - Goodwill and Intangible Assets - Schedule of Changes in Goodwill and Intangible Assets (Details) Sheet http://www.triumphbancorp.com/role/GoodwillandIntangibleAssetsScheduleofChangesinGoodwillandIntangibleAssetsDetails Goodwill and Intangible Assets - Schedule of Changes in Goodwill and Intangible Assets (Details) Details 66 false false R67.htm 2442430 - Disclosure - Derivative Financial Instruments - Additional Information (Details) Sheet http://www.triumphbancorp.com/role/DerivativeFinancialInstrumentsAdditionalInformationDetails Derivative Financial Instruments - Additional Information (Details) Details 67 false false R68.htm 2443431 - Disclosure - Derivative Financial Instruments - Pre-Tax Impact of Terminated Cash Flow Hedge on AOCI (Details) Sheet http://www.triumphbancorp.com/role/DerivativeFinancialInstrumentsPreTaxImpactofTerminatedCashFlowHedgeonAOCIDetails Derivative Financial Instruments - Pre-Tax Impact of Terminated Cash Flow Hedge on AOCI (Details) Details 68 false false R69.htm 2444432 - Disclosure - Derivative Financial Instruments - Schedule of Fair Value of Derivative Financial Instruments Classification on Balance Sheet (Details) Sheet http://www.triumphbancorp.com/role/DerivativeFinancialInstrumentsScheduleofFairValueofDerivativeFinancialInstrumentsClassificationonBalanceSheetDetails Derivative Financial Instruments - Schedule of Fair Value of Derivative Financial Instruments Classification on Balance Sheet (Details) Details 69 false false R70.htm 2445433 - Disclosure - Derivative Financial Instruments - Schedule of Effect of Fair Value and Cash Flow Hedge on Accumulated Other Comprehensive Income, Net of Tax (Details) Sheet http://www.triumphbancorp.com/role/DerivativeFinancialInstrumentsScheduleofEffectofFairValueandCashFlowHedgeonAccumulatedOtherComprehensiveIncomeNetofTaxDetails Derivative Financial Instruments - Schedule of Effect of Fair Value and Cash Flow Hedge on Accumulated Other Comprehensive Income, Net of Tax (Details) Details 70 false false R71.htm 2448434 - Disclosure - Variable Interest Entities - Summary of Closed Collateralized Loan Obligation ("CLO") Funds (Details) Sheet http://www.triumphbancorp.com/role/VariableInterestEntitiesSummaryofClosedCollateralizedLoanObligationCLOFundsDetails Variable Interest Entities - Summary of Closed Collateralized Loan Obligation ("CLO") Funds (Details) Details 71 false false R72.htm 2449435 - Disclosure - Variable Interest Entities - Additional Information - (Details) Sheet http://www.triumphbancorp.com/role/VariableInterestEntitiesAdditionalInformationDetails Variable Interest Entities - Additional Information - (Details) Details 72 false false R73.htm 2453436 - Disclosure - Off-Balance Sheet Loan Commitments - Summary of Financial Instruments with Off-Balance Sheet Risk - (Details) Sheet http://www.triumphbancorp.com/role/OffBalanceSheetLoanCommitmentsSummaryofFinancialInstrumentswithOffBalanceSheetRiskDetails Off-Balance Sheet Loan Commitments - Summary of Financial Instruments with Off-Balance Sheet Risk - (Details) Details 73 false false R74.htm 2454437 - Disclosure - Off-Balance Sheet Loan Commitments - Additional Information (Details) Sheet http://www.triumphbancorp.com/role/OffBalanceSheetLoanCommitmentsAdditionalInformationDetails Off-Balance Sheet Loan Commitments - Additional Information (Details) Details 74 false false R75.htm 2457438 - Disclosure - Fair Value Disclosures - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) Sheet http://www.triumphbancorp.com/role/FairValueDisclosuresAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails Fair Value Disclosures - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) Details 75 false false R76.htm 2458439 - Disclosure - Fair Value Disclosures - Additional Information (Details) Sheet http://www.triumphbancorp.com/role/FairValueDisclosuresAdditionalInformationDetails Fair Value Disclosures - Additional Information (Details) Details 76 false false R77.htm 2459440 - Disclosure - Fair Value Disclosures - Reconciliation of Opening Balance to Closing Balance of Fair Value of Contingent Consideration (Details) Sheet http://www.triumphbancorp.com/role/FairValueDisclosuresReconciliationofOpeningBalancetoClosingBalanceofFairValueofContingentConsiderationDetails Fair Value Disclosures - Reconciliation of Opening Balance to Closing Balance of Fair Value of Contingent Consideration (Details) Details 77 false false R78.htm 2460441 - Disclosure - Fair Value Disclosures - Fair Value of Assets Measured on Non-recurring Basis (Details) Sheet http://www.triumphbancorp.com/role/FairValueDisclosuresFairValueofAssetsMeasuredonNonrecurringBasisDetails Fair Value Disclosures - Fair Value of Assets Measured on Non-recurring Basis (Details) Details 78 false false R79.htm 2461442 - Disclosure - Fair Value Disclosures - Estimated Fair Value of Company's Financial Assets and Financial Liabilities (Details) Sheet http://www.triumphbancorp.com/role/FairValueDisclosuresEstimatedFairValueofCompanysFinancialAssetsandFinancialLiabilitiesDetails Fair Value Disclosures - Estimated Fair Value of Company's Financial Assets and Financial Liabilities (Details) Details 79 false false R80.htm 2464443 - Disclosure - Regulatory Matters - Schedule of Actual Capital Amounts and Ratios (Details) Sheet http://www.triumphbancorp.com/role/RegulatoryMattersScheduleofActualCapitalAmountsandRatiosDetails Regulatory Matters - Schedule of Actual Capital Amounts and Ratios (Details) Details 80 false false R81.htm 2467444 - Disclosure - Stockholders' Equity - Summary of Capital Structure (Details) Sheet http://www.triumphbancorp.com/role/StockholdersEquitySummaryofCapitalStructureDetails Stockholders' Equity - Summary of Capital Structure (Details) Details 81 false false R82.htm 2468445 - Disclosure - Stockholders' Equity - Additional Information (Details) Sheet http://www.triumphbancorp.com/role/StockholdersEquityAdditionalInformationDetails Stockholders' Equity - Additional Information (Details) Details 82 false false R83.htm 2471446 - Disclosure - Stock Based Compensation - Additional Information (Details) Sheet http://www.triumphbancorp.com/role/StockBasedCompensationAdditionalInformationDetails Stock Based Compensation - Additional Information (Details) Details 83 false false R84.htm 2472447 - Disclosure - Stock Based Compensation - Summary of Changes in Company's Nonvested Restricted Stock Awards (Details) Sheet http://www.triumphbancorp.com/role/StockBasedCompensationSummaryofChangesinCompanysNonvestedRestrictedStockAwardsDetails Stock Based Compensation - Summary of Changes in Company's Nonvested Restricted Stock Awards (Details) Details 84 false false R85.htm 2473448 - Disclosure - Stock Based Compensation - Summary of Changes in Company's Nonvested Restricted Stock Units (Details) Sheet http://www.triumphbancorp.com/role/StockBasedCompensationSummaryofChangesinCompanysNonvestedRestrictedStockUnitsDetails Stock Based Compensation - Summary of Changes in Company's Nonvested Restricted Stock Units (Details) Details 85 false false R86.htm 2474449 - Disclosure - Stock Based Compensation - Summary of Changes in Company's Nonvested Market Based Performance Stock Units (Details) Sheet http://www.triumphbancorp.com/role/StockBasedCompensationSummaryofChangesinCompanysNonvestedMarketBasedPerformanceStockUnitsDetails Stock Based Compensation - Summary of Changes in Company's Nonvested Market Based Performance Stock Units (Details) Details 86 false false R87.htm 2475450 - Disclosure - Stock Based Compensation - Summary of Changes in Company's Nonvested Performance Based Performance Stock Units (Details) Sheet http://www.triumphbancorp.com/role/StockBasedCompensationSummaryofChangesinCompanysNonvestedPerformanceBasedPerformanceStockUnitsDetails Stock Based Compensation - Summary of Changes in Company's Nonvested Performance Based Performance Stock Units (Details) Details 87 false false R88.htm 2476451 - Disclosure - Stock Based Compensation - Summary of Changes in Company's Stock Options (Details) Sheet http://www.triumphbancorp.com/role/StockBasedCompensationSummaryofChangesinCompanysStockOptionsDetails Stock Based Compensation - Summary of Changes in Company's Stock Options (Details) Details 88 false false R89.htm 2477452 - Disclosure - Stock Based Compensation - Schedule of Information Related to Stock Options (Details) Sheet http://www.triumphbancorp.com/role/StockBasedCompensationScheduleofInformationRelatedtoStockOptionsDetails Stock Based Compensation - Schedule of Information Related to Stock Options (Details) Details 89 false false R90.htm 2480453 - Disclosure - Earnings Per Share - Factors Used in Computation of Earnings Per Share (Details) Sheet http://www.triumphbancorp.com/role/EarningsPerShareFactorsUsedinComputationofEarningsPerShareDetails Earnings Per Share - Factors Used in Computation of Earnings Per Share (Details) Details 90 false false R91.htm 2481454 - Disclosure - Earnings Per Share - Schedule of Shares not Considered in Computing Diluted Earnings per Common Share (Details) Sheet http://www.triumphbancorp.com/role/EarningsPerShareScheduleofSharesnotConsideredinComputingDilutedEarningsperCommonShareDetails Earnings Per Share - Schedule of Shares not Considered in Computing Diluted Earnings per Common Share (Details) Details 91 false false R92.htm 2483455 - Disclosure - Revenue From Contracts With Customers (Details) Sheet http://www.triumphbancorp.com/role/RevenueFromContractsWithCustomersDetails Revenue From Contracts With Customers (Details) Details http://www.triumphbancorp.com/role/RevenueFromContractsWithCustomers 92 false false R93.htm 2486456 - Disclosure - Business Segment Information - Banking Segment (Details) Sheet http://www.triumphbancorp.com/role/BusinessSegmentInformationBankingSegmentDetails Business Segment Information - Banking Segment (Details) Details 93 false false All Reports Book All Reports tbk-20220331.htm tbk-20220331.xsd tbk-20220331_cal.xml tbk-20220331_def.xml tbk-20220331_lab.xml tbk-20220331_pre.xml tbk-20220331xexx311.htm tbk-20220331xexx312.htm tbk-20220331xexx321.htm http://fasb.org/us-gaap/2021-01-31 http://xbrl.sec.gov/dei/2021q4 true true